IOTA/IOTA-ES occultation update for (905) Universitas / TYC 1930-00944-1 event on 2024 Oct 04, 19:23 UT Visible from Summary ------- On 2024 Oct 04 UT, the 12.458 km diameter asteroid (905) Universitas will occult a 10.2 mag star in the constellation Gemini for observers along a path across . In the case of an occultation, the combined light of the asteroid and the star will drop by 5.78 mag to 15.98 mag (the magnitude of the asteroid) for at most 0.500 seconds. This update is based on, astrometry for the asteroid kindly provided by the IAU Minor Planet Center. This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The event at a glimpse ---------------------- * Rank: 99 * date and approx. time of event: 2024 Oct 04, 19:20 - 2024 Oct 04, 19:25 * geocentric midpoint of event [JD]: 2460588.30769396 * magnitude of target star: 10.21 * magnitude drop [mag]: 5.78 * estimated maximum duration [s]: 0.500 * Moon: 3 % sunlit, 96° distance * Sun: 75° distance * rough path description: The occultation path -------------------- * approximate projected width [km]: 20 * 1 sigma uncertainty interval [path widths]: +/- 0.12 * 1 sigma uncertainty interval [seconds]: +/- 0.7 * 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.011, +/- 0.002) * 1 sigma uncertainty ellipse (major, minor, PA): (0.011", 0.001", 100°) * approx speed of asteroid's shadow [km/s]: 25.0743 * website for maps: http://www.asteroidoccultation.com Path Coordinates: Occultation of TYC 1930-00944-1 by 905 Universitas on 2024 Oct 4 Centre Star Star Sun Path Limits Error Limits Alt E. Longitude Latitude U.T. Alt Az Alt Limit 1 Limit 2 Limit 3 Limit 4 Crn o ' " o ' " h m s o o o o ' " o ' " o ' " o ' " Latitude Latitude Latitude Latitude 111 0 0 -41 29 29 19 20 30.6 0 56 -29 -41 36 9 -41 22 50 -41 37 49 -41 21 11 .... 112 0 0 -40 59 24 19 20 30.7 1 55 -29 -41 6 2 -40 52 47 -41 7 41 -40 51 9 0.68 113 0 0 -40 29 41 19 20 30.9 2 54 -28 -40 36 16 -40 23 6 -40 37 55 -40 21 29 0.92 114 0 0 -40 0 20 19 20 31.2 3 54 -28 -40 6 53 -39 53 48 -40 8 31 -39 52 11 1.03 115 0 0 -39 31 24 19 20 31.7 4 53 -28 -39 37 55 -39 24 55 -39 39 32 -39 23 18 1.09 116 0 0 -39 2 53 19 20 32.2 5 52 -27 -39 9 21 -38 56 25 -39 10 58 -38 54 49 1.13 117 0 0 -38 34 47 19 20 32.8 6 52 -27 -38 41 14 -38 28 22 -38 42 50 -38 26 46 1.16 118 0 0 -38 7 8 19 20 33.5 7 51 -26 -38 13 32 -38 0 45 -38 15 8 -37 59 10 1.18 119 0 0 -37 39 57 19 20 34.4 8 51 -26 -37 46 19 -37 33 36 -37 47 54 -37 32 1 1.19 120 0 0 -37 13 14 19 20 35.3 9 50 -25 -37 19 34 -37 6 55 -37 21 8 -37 5 21 1.20 121 0 0 -36 46 59 19 20 36.4 10 49 -25 -36 53 17 -36 40 43 -36 54 51 -36 39 9 1.21 122 0 0 -36 21 15 19 20 37.5 10 49 -24 -36 27 31 -36 15 0 -36 29 4 -36 13 27 1.22 123 0 0 -35 56 1 19 20 38.7 11 48 -24 -36 2 14 -35 49 48 -36 3 48 -35 48 15 1.23 124 0 0 -35 31 17 19 20 40.1 12 47 -23 -35 37 29 -35 25 7 -35 39 2 -35 23 35 1.23 125 0 0 -35 7 6 19 20 41.6 13 47 -23 -35 13 16 -35 0 57 -35 14 48 -34 59 25 1.24 126 0 0 -34 43 27 19 20 43.1 14 46 -22 -34 49 35 -34 37 20 -34 51 7 -34 35 48 1.24 127 0 0 -34 20 20 19 20 44.8 15 45 -21 -34 26 27 -34 14 15 -34 27 58 -34 12 44 1.25 128 0 0 -33 57 48 19 20 46.5 16 45 -21 -34 3 52 -33 51 44 -34 5 23 -33 50 14 1.25 129 0 0 -33 35 48 19 20 48.3 16 44 -20 -33 41 51 -33 29 47 -33 43 22 -33 28 17 1.26 130 0 0 -33 14 24 19 20 50.3 17 43 -19 -33 20 25 -33 8 24 -33 21 55 -33 6 54 1.26 131 0 0 -32 53 34 19 20 52.3 18 43 -19 -32 59 33 -32 47 35 -33 1 3 -32 46 6 1.26 132 0 0 -32 33 20 19 20 54.4 19 42 -18 -32 39 18 -32 27 23 -32 40 47 -32 25 54 1.26 133 0 0 -32 13 41 19 20 56.6 20 41 -17 -32 19 37 -32 7 45 -32 21 6 -32 6 17 1.27 134 0 0 -31 54 38 19 20 58.9 21 41 -17 -32 0 33 -31 48 44 -32 2 2 -31 47 16 1.27 135 0 0 -31 36 12 19 21 1.3 21 40 -16 -31 42 6 -31 30 20 -31 43 34 -31 28 52 1.27 136 0 0 -31 18 23 19 21 3.8 22 39 -15 -31 24 15 -31 12 32 -31 25 43 -31 11 5 1.27 137 0 0 -31 1 11 19 21 6.3 23 39 -14 -31 7 2 -30 55 21 -31 8 29 -30 53 54 1.28 138 0 0 -30 44 37 19 21 9.0 24 38 -14 -30 50 26 -30 38 48 -30 51 53 -30 37 21 1.28 139 0 0 -30 28 40 19 21 11.7 24 37 -13 -30 34 28 -30 22 53 -30 35 55 -30 21 26 1.28 140 0 0 -30 13 22 19 21 14.5 25 36 -12 -30 19 9 -30 7 35 -30 20 35 -30 6 9 1.28 141 0 0 -29 58 41 19 21 17.3 26 36 -11 -30 4 27 -29 52 56 -30 5 54 -29 51 30 1.28 142 0 0 -29 44 40 19 21 20.3 27 35 -10 -29 50 25 -29 38 56 -29 51 51 -29 37 30 1.28 143 0 0 -29 31 17 19 21 23.3 27 34 -10 -29 37 1 -29 25 34 -29 38 27 -29 24 9 1.29 144 0 0 -29 18 33 19 21 26.3 28 33 -9 -29 24 16 -29 12 51 -29 25 42 -29 11 26 1.29 145 0 0 -29 6 29 19 21 29.5 29 32 -8 -29 12 11 -29 0 48 -29 13 36 -28 59 23 1.29 146 0 0 -28 55 4 19 21 32.7 29 31 -7 -29 0 45 -28 49 23 -29 2 10 -28 47 59 1.29 147 0 0 -28 44 18 19 21 35.9 30 31 -6 -28 49 59 -28 38 39 -28 51 23 -28 37 14 1.29 148 0 0 -28 34 12 19 21 39.2 30 30 -5 -28 39 52 -28 28 34 -28 41 17 -28 27 9 1.29 149 0 0 -28 24 47 19 21 42.6 31 29 -4 -28 30 26 -28 19 8 -28 31 50 -28 17 44 1.29 150 0 0 -28 16 1 19 21 46.0 31 28 -4 -28 21 39 -28 10 23 -28 23 3 -28 8 59 1.29 151 0 0 -28 7 55 19 21 49.5 32 27 -3 -28 13 33 -28 2 18 -28 14 57 -28 0 54 1.29 152 0 0 -28 0 30 19 21 53.0 33 26 -2 -28 6 7 -27 54 53 -28 7 31 -27 53 30 1.30 153 0 0 -27 53 45 19 21 56.6 33 25 -1 -27 59 21 -27 48 9 -28 0 45 -27 46 45 1.30 154 0 0 -27 47 40 19 22 0.2 33 24 0 -27 53 16 -27 42 5 -27 54 40 -27 40 41 1.30 155 0 0 -27 42 16 19 22 3.9 34 23 1 -27 47 52 -27 36 41 -27 49 16 -27 35 18 1.30 156 0 0 -27 37 33 19 22 7.6 34 22 2 -27 43 8 -27 31 58 -27 44 32 -27 30 35 1.30 157 0 0 -27 33 30 19 22 11.4 35 21 3 -27 39 5 -27 27 56 -27 40 29 -27 26 33 1.30 158 0 0 -27 30 8 19 22 15.1 35 20 3 -27 35 43 -27 24 34 -27 37 7 -27 23 11 1.30 159 0 0 -27 27 27 19 22 19.0 35 19 4 -27 33 2 -27 21 53 -27 34 25 -27 20 30 1.30 160 0 0 -27 25 27 19 22 22.8 36 18 5 -27 31 1 -27 19 53 -27 32 25 -27 18 30 1.30 161 0 0 -27 24 7 19 22 26.7 36 17 6 -27 29 42 -27 18 34 -27 31 5 -27 17 11 1.30 162 0 0 -27 23 29 19 22 30.6 36 16 7 -27 29 3 -27 17 55 -27 30 27 -27 16 32 1.30 163 0 0 -27 23 31 19 22 34.5 37 15 8 -27 29 6 -27 17 57 -27 30 29 -27 16 35 1.30 164 0 0 -27 24 15 19 22 38.4 37 13 9 -27 29 49 -27 18 41 -27 31 13 -27 17 18 1.30 165 0 0 -27 25 39 19 22 42.4 37 12 10 -27 31 14 -27 20 5 -27 32 37 -27 18 42 1.31 166 0 0 -27 27 44 19 22 46.4 37 11 11 -27 33 19 -27 22 10 -27 34 42 -27 20 47 1.31 167 0 0 -27 30 30 19 22 50.4 37 10 12 -27 36 5 -27 24 56 -27 37 29 -27 23 33 1.31 168 0 0 -27 33 57 19 22 54.4 37 9 12 -27 39 33 -27 28 23 -27 40 56 -27 27 0 1.31 169 0 0 -27 38 5 19 22 58.4 37 8 13 -27 43 41 -27 32 30 -27 45 4 -27 31 7 1.31 170 0 0 -27 42 54 19 23 2.4 37 7 14 -27 48 30 -27 37 19 -27 49 54 -27 35 55 1.31 171 0 0 -27 48 23 19 23 6.4 37 5 15 -27 54 0 -27 42 48 -27 55 24 -27 41 24 1.31 172 0 0 -27 54 34 19 23 10.4 37 4 16 -28 0 11 -27 48 57 -28 1 35 -27 47 34 1.31 173 0 0 -28 1 25 19 23 14.4 37 3 17 -28 7 2 -27 55 48 -28 8 26 -27 54 24 1.31 174 0 0 -28 8 56 19 23 18.4 37 2 18 -28 14 34 -28 3 19 -28 15 58 -28 1 55 1.31 175 0 0 -28 17 8 19 23 22.4 37 1 19 -28 22 47 -28 11 30 -28 24 11 -28 10 6 1.31 176 0 0 -28 26 1 19 23 26.4 37 360 20 -28 31 40 -28 20 22 -28 33 4 -28 18 58 1.31 177 0 0 -28 35 33 19 23 30.4 37 358 20 -28 41 13 -28 29 54 -28 42 38 -28 28 30 1.31 178 0 0 -28 45 46 19 23 34.4 37 357 21 -28 51 27 -28 40 6 -28 52 52 -28 38 42 1.31 179 0 0 -28 56 39 19 23 38.3 36 356 22 -29 2 21 -28 50 58 -29 3 46 -28 49 34 1.31 180 0 0 -29 8 12 19 23 42.3 36 355 23 -29 13 55 -29 2 30 -29 15 20 -29 1 5 1.31 -179 0 0 -29 20 25 19 23 46.2 36 354 24 -29 26 8 -29 14 42 -29 27 34 -29 13 17 1.31 -178 0 0 -29 33 17 19 23 50.1 35 353 25 -29 39 2 -29 27 33 -29 40 28 -29 26 8 1.31 -177 0 0 -29 46 49 19 23 53.9 35 352 26 -29 52 35 -29 41 4 -29 54 1 -29 39 39 1.31 -176 0 0 -30 1 0 19 23 57.7 35 351 26 -30 6 47 -29 55 14 -30 8 13 -29 53 48 1.31 -175 0 0 -30 15 50 19 24 1.5 34 349 27 -30 21 38 -30 10 3 -30 23 4 -30 8 36 1.31 -174 0 0 -30 31 18 19 24 5.3 34 348 28 -30 37 7 -30 25 30 -30 38 34 -30 24 4 1.31 -173 0 0 -30 47 25 19 24 9.0 34 347 29 -30 53 16 -30 41 36 -30 54 43 -30 40 9 1.31 -172 0 0 -31 4 11 19 24 12.7 33 346 30 -31 10 2 -30 58 20 -31 11 30 -30 56 53 1.31 -171 0 0 -31 21 34 19 24 16.3 33 345 30 -31 27 27 -31 15 42 -31 28 55 -31 14 15 1.31 -170 0 0 -31 39 35 19 24 19.9 32 344 31 -31 45 29 -31 33 41 -31 46 58 -31 32 14 1.31 -169 0 0 -31 58 13 19 24 23.4 32 343 32 -32 4 9 -31 52 18 -32 5 38 -31 50 50 1.31 -168 0 0 -32 17 29 19 24 26.9 31 342 33 -32 23 26 -32 11 32 -32 24 55 -32 10 3 1.31 -167 0 0 -32 37 20 19 24 30.3 30 341 33 -32 43 19 -32 31 22 -32 44 49 -32 29 53 1.31 -166 0 0 -32 57 48 19 24 33.6 30 340 34 -33 3 49 -32 51 49 -33 5 19 -32 50 19 1.31 -165 0 0 -33 18 52 19 24 36.9 29 339 35 -33 24 54 -33 12 51 -33 26 24 -33 11 21 1.31 -164 0 0 -33 40 31 19 24 40.2 29 339 35 -33 46 35 -33 34 28 -33 48 6 -33 32 58 1.31 -163 0 0 -34 2 45 19 24 43.4 28 338 36 -34 8 51 -33 56 40 -34 10 22 -33 55 10 1.31 -162 0 0 -34 25 33 19 24 46.5 27 337 37 -34 31 41 -34 19 27 -34 33 12 -34 17 56 1.31 -161 0 0 -34 48 55 19 24 49.5 26 336 37 -34 55 5 -34 42 47 -34 56 37 -34 41 15 1.31 -160 0 0 -35 12 51 19 24 52.4 26 335 38 -35 19 2 -35 6 40 -35 20 34 -35 5 8 1.31 -159 0 0 -35 37 19 19 24 55.3 25 334 39 -35 43 32 -35 31 7 -35 45 5 -35 29 34 1.31 -158 0 0 -36 2 19 19 24 58.1 24 333 39 -36 8 34 -35 56 5 -36 10 8 -35 54 32 1.31 -157 0 0 -36 27 50 19 25 0.9 24 332 40 -36 34 8 -36 21 34 -36 35 42 -36 20 1 1.31 -156 0 0 -36 53 53 19 25 3.5 23 332 40 -37 0 12 -36 47 34 -37 1 46 -36 46 1 1.31 -155 0 0 -37 20 25 19 25 6.1 22 331 41 -37 26 46 -37 14 5 -37 28 21 -37 12 30 1.31 -154 0 0 -37 47 27 19 25 8.5 21 330 41 -37 53 50 -37 41 4 -37 55 26 -37 39 29 1.31 -153 0 0 -38 14 57 19 25 10.9 20 329 41 -38 21 22 -38 8 32 -38 22 58 -38 6 56 1.31 -152 0 0 -38 42 54 19 25 13.2 20 328 42 -38 49 22 -38 36 28 -38 50 59 -38 34 52 1.31 -151 0 0 -39 11 19 19 25 15.4 19 328 42 -39 17 49 -39 4 50 -39 19 27 -39 3 13 1.32 -150 0 0 -39 40 10 19 25 17.5 18 327 43 -39 46 42 -39 33 38 -39 48 20 -39 32 1 1.32 -149 0 0 -40 9 25 19 25 19.5 17 326 43 -40 16 0 -40 2 52 -40 17 39 -40 1 14 1.32 -148 0 0 -40 39 5 19 25 21.4 16 325 43 -40 45 42 -40 32 29 -40 47 21 -40 30 51 1.32 -147 0 0 -41 9 8 19 25 23.3 15 325 43 -41 15 48 -41 2 30 -41 17 27 -41 0 51 1.32 -146 0 0 -41 39 33 19 25 25.0 15 324 44 -41 46 15 -41 32 52 -41 47 55 -41 31 13 1.32 -145 0 0 -42 10 19 19 25 26.6 14 323 44 -42 17 3 -42 3 36 -42 18 44 -42 1 56 1.32 -144 0 0 -42 41 25 19 25 28.1 13 322 44 -42 48 12 -42 34 39 -42 49 53 -42 32 58 1.32 -143 0 0 -43 12 49 19 25 29.5 12 322 44 -43 19 39 -43 6 1 -43 21 21 -43 4 20 1.32 -142 0 0 -43 44 32 19 25 30.9 11 321 44 -43 51 24 -43 37 41 -43 53 6 -43 35 59 1.32 -141 0 0 -44 16 30 19 25 32.1 10 320 44 -44 23 25 -44 9 37 -44 25 8 -44 7 55 1.33 -140 0 0 -44 48 44 19 25 33.2 9 319 44 -44 55 41 -44 41 49 -44 57 25 -44 40 6 1.33 -139 0 0 -45 21 12 19 25 34.2 9 319 44 -45 28 11 -45 14 14 -45 29 56 -45 12 31 1.33 -138 0 0 -45 53 53 19 25 35.1 8 318 44 -46 0 54 -45 46 52 -46 2 40 -45 45 8 1.34 -137 0 0 -46 26 45 19 25 35.9 7 317 44 -46 33 49 -46 19 42 -46 35 35 -46 17 57 1.34 -136 0 0 -46 59 47 19 25 36.6 6 316 44 -47 6 53 -46 52 41 -47 8 40 -46 50 56 1.35 -135 0 0 -47 32 57 19 25 37.2 5 316 44 -47 40 6 -47 25 49 -47 41 53 -47 24 3 1.35 -134 0 0 -48 6 15 19 25 37.7 4 315 44 -48 13 26 -47 59 5 -48 15 14 -47 57 18 1.36 -133 0 0 -48 39 39 19 25 38.1 3 314 43 -48 46 52 -48 32 26 -48 48 41 -48 30 39 1.38 -132 0 0 -49 13 7 19 25 38.4 2 313 43 -49 20 23 -49 5 52 -49 22 12 -49 4 4 1.41 -131 0 0 -49 46 38 19 25 38.6 2 313 43 -49 53 56 -49 39 21 -49 55 46 -49 37 32 1.46 -130 0 0 -50 20 10 19 25 38.7 1 312 43 -50 27 31 -50 12 51 -50 29 21 -50 11 2 1.64 -129 0 0 .. .. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. -50 44 32 .... Uncertainty in time = +/- 1 secs Prediction of 2023 Jul 15.6 Data for the target star ------------------------ * name: TYC 1930-00944-1 * constellation : Gemini * BCRS position with proper motion to date of event [h,m,s ; °,',"] RA: 08 00 18.0842 DE: +24 47 37.999 * GCRS Astrometric position with proper motion and parallax to date of event [h,m,s ; °,',"] RA: 08 00 18.0844 DE: +24 47 37.998 * position source: Gaia DR3 * standard error: RA,DE [mas]: (0.200,0.100) * V mag [mag]: 10.2 * B mag [mag]: 10.4 * Diameter [mas]: 0.00 * remarks: Data for the minor planet ------------------------- * general information: (number) name: (905) Universitas asteroid class: approx. diameter [km]: 12 approx. diameter ["]: 0.008 distance from Earth [AU]: 2.07380 asteroid position offset in RA [mas]: 0 asteroid position offset in DE [mas]: 0 * orbital information: orbit source: JPL#50 date of fit: 2023 Apr 24 source of used astrometry: MPC, JPL number of used observations: 0 number of rejected observations: 0 time covered by the observations: 1800 Jan 01 - 1800 Jan 01 1 sigma uncertainty ellipse (major, minor, PA): 0.011", 0.001", 99.817° remarks: * orbital elements for (905)Universitas : Mean anomaly = 52.9964507458 deg Arg. of pericenter = 343.3415572411 deg Long. of node = 37.1145198485 deg Inclination = 5.3216898059 deg Eccentricity = 0.1534766830 Semimajor axis = 2.2162581155 AU Perihelion dist = 1.8761141713 AU Mag: H = 11.59, G = 0.15 Epoch of elements : MJD 60587.80769362 TDT (2024 Oct 04.8077) ------ occelmnt file for Occult BEGIN ----------------------------------- JPL#502023Apr24,0.50,2024,10,4,19.384655,-0.078882,-0.789572,14.082870,-1.403232,-0.005034,0.001144,-0.000001,0.000000 175.7035,24.7268,-113.65,-4.77,False TYC 1930-00944-1,8.00502336,24.7938887,10.40,10.21,10.11,0.0,0,,8.02971077,24.7267820,5.77,5.43,0,0,0 905,Universitas,15.98,12.458,2.0738,0,0,4.383,-5.96,,0.8,0 0,52.7552,2024,10,4,343.3416,37.1145,5.3217,0.15348,2.21626,1.87611,11.59,5.0,0.15 1.124,0.0110,0.0007,100,0.0010,Known errors,1.16,0,-1,-1 20241004_0944-1,60140.61 ------ occelmnt file for Occult END ----------------------------------- ============================================ Calculator (s): Steve Preston Date of update: 2023 Jul 15, 14:37 UT Steve Preston 7640 NE 32nd St Medina, WA 98039 stevepr@acm.org